If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Which is the smallest number that you can write using all the vowels exactly once?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

Why do we preferably have round manhole covers and not square ones?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

What Does this text mean:

important=important

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

I am working in a bus company. The company recently went under expansion and therefore there was not enough room for all the buses. As a result, twelve buses had to be stored outside.

If the company decides to expand the garage space by forty percent, enough space to accommodate the current buses will be created leaving enough space for twelve more buses if the need arises in future.

Can you calculate the number of buses that the company owns at present?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

I add 5 to 9 and get 2. The answer is correct, so what am I?